our world is globalizing ever more. that's not only true for markets and production, but it's also true for behaviors, for diseases. so we're more vulnerable because of our very wemobility and we'rg in crowded cities. that's fantastic from the per suspective of a virus because in no time, it can infect hundreds of thousands of people. >> there have been about 30 newly emerged diseases that have the potential to become pan democratics. if we do nothing, it's not a matter of if there will be a global pandemic. it's just a matter of when and which virus and how bad. >> the world changes around us at increasing speed. we caused a lot of that change. migrating to cities, stripping